George n



(NO Model.)

G. N. PEARSON.

THILL COUPLING.

No. 523,129. Patented Jul 17, 1894 III ' Eric.

GEORGE N. PEARSON, OF I-IANTSPORT, CANADA. 7 I

THILL-CAOUPLIN/G.

SPECIFICATION forming part of Letters Patent No. 523,129, dated July .17, 1894.

Application filed December 2, 1893. Serial No. 492,632. (NounodeL) To all whom it may concern:

Be it known that I, GEORGE N. PEARSON, a sub; ect of Victoria, Queen of Great Britain, residing at Hantsport, county of Hants, Nova Scotla, Canada, have invented anew and useful Improvementin Thill-Oouplings, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, formingapart of this specification, in explaining its nature.

The invention relates to a thill coupling, or means for attaching shafts to an axle, whereby a strong union is secured and noise or rattle consequent from the presentmode of attachment lessened or done away with and increased wearing properties obtained.

To carry my invention into effect, the carrlage or wagon axle is provided with a collar or shoulder at a suitable distance from the hub or wheel bearing, and each end of the shaft outside of this shoulderor collar has a threaded section for receiving a holding nut, this threaded section being at each end of the axle between the collar or shoulder and the wheel or hub bearing.

The thills have at their inner ends the couplings which are securely bolted to them, and which are formed to provide a hole of the size 4 of the axle next the shoulder or collar and they are slipped upon the axle from each end thereof and are held against the shoulders or 001- lars by nuts which screw upon threaded sections of the axle. These nuts may also have integral therewith or attached thereto dust caps, as will hereinafter be explained.

Referring to the drawings: Figure l is a view of one end of an axle representing my invention as applied thereto. Fig. 2 is a view in section upon the dotted line of Fig. 1 and of the parts to the right thereof. Figs. 3 and at are detail views to which reference is hereinafter made. Fig. 5 is a detail view representing the nut for holding the coupling against the collar as made separate from the dust cap nut.

In the drawings-A is the axle.

B is the thill or shaft coupling, one only being shown.

0 represents the wheel hub; D the threaded section of the axle, E the hub bearing, F the dust cap, and G the coupling holding nut.

The coupling 13 is shown in Fig. 2, and it has the cylindrical section b, in which is a hole I) of the size of the axle next the collar a. It has also the arm 19 which extends radially from the ring and in which are holes 11 for receiving the bolts used in fastening it to the thill end.

The coupling is attached to the axle by entering it thereon from its end, and it is held against the collar 06 by the nut G, the nut having an interior threaded section d which engages with the threaded section D of the axle. A stop is formed at d to prevent the nutfrom being screwed tightly against the outer face of the coupling ring, as while it is desirable that it should be clamped between the nut and the collar firmly enough to prevent rattle it is not desirable to rigidly lock it thereto.

1 have represented the coupling holding nut as carrying or supporting a dust cap which may or may not be integral with it, and as forming the inner shoulder against which the hub ring may bear,such bearing being established by outer end d of the nut. The nut has any desired form of wrench receiving sur-.

face, and when the dust cap F isintegral with it, I prefer the construction represented in Fig. 1. The dust cap, however, may be formed separately from the nut and attached to the nut by screwing thereon, as represented in Fig. 3, or by pinning or riveting, as represented in Fig. 4, or in any other desired way.

While I have called the part Gr a nut, it acts not only to hold the coupling upon the axle against the collar, but also as a spacing sleeve between the coupling and the inner end of the hub and also as a shoulder or collar against which the inner end of the hub may bear and the end of which may extend slightly within the hub, as represented in Fig. l.

A coupling of this construction is very strong, very durable, easily attached to the axle, is safe, and does away with noise produced by the form of coupling now in vogue.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- 1. The combination of a carriage or wagon axle havingcollarsorshouldersa and threaded sections D and a bearing section between the threaded sections and. the collars, with the thill couplings B having holes to receive the axle ends as specified, and held against the collars or shoulders at by nuts D, which screw shoulders or ends (Z against which the inner upon the axle, as and for the purposes deends of the hubs bear, substantially as de- 1 5 scribed. scribed.

2. The combination of the shaft A having 4. The combination of the axle A having 5 the collars a, the threaded sections D and the the shoulders or collars a and threaded sechub bearings E, with the thill couplings B attions D, the hub bearings E, the hubs O, and tached to the shaft as specified, and the OOIII- the dust caps F carried by the nuts G, as and 20 bined spacing rings and nuts D,- the nuts for the purposes described. screwing upon the threaded sections of the to axle, as and for the purposes described. GEORGE PEARSON 3. The combination of the axleAprovided In presence of with the collarsorshouldersaand the threaded J. A. SMITH, sections 1) with the holding nuts G having the G. \V. C. DAVISON. 

